Telephone system



p 1945- J. E. OSTLINE 2 TELEPHONE SYSTEM Filed Aug. 26, 1940 28Sheets-Sheet l Zone 46 Zone 38 INVENTOR JOHN E OSTLINE ATTORNEYS flreaServed by Te/ep/mne System Sept. 18, 1945. J. E. QSTLINE TELEPHONESYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet 2 TTORNEYS Sept. 18, 1945. J.E. OSTLINE 2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet 4 180 PrzmarySeleclor 50 h H/ 118/ C4747 J T:

INVENTOR JOHN E OSTLINE ATTORNEYS Sept. 18, 1945. osTLlNE TELEPHONESYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet 5 Q EE S E8 K E O Esq 86 EESRESS EQQ

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ATTORNEYS p 8, 1945- .1. E. OSTLINE TELEPHONE SYSTEM Filed Aug. 26, 194028 Sheets-Sheet 7 Prin Zer Coniroller 85 m w 5 7 4 7 m INVENTOR JOHN505mm: 3.

TTORNEYS Sept. 18, 1945.

J. OSTLINE 2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet 8 Prinfer'Confrol/er 85 INVENTOR JOHN E. OSTLINE ATTOR NEYS Sept. 18, 1945.

Defecior 70 J. E. osTLiNE 2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1940 Cross Bar Suu'zch Confrol Network1100 28 Sheets-Sheet ll 2 70 of/zer Cross Bar 8 at.

0 Rafa Sm. 0 H23 0 F] MS CM "3 T0 ofher Defecior INVENTOR JOHN E.0STLINEBY M, ATTORNEYS p 1945. J. E. OSTLINE 2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1940' 28 Sheets-Sheet 12 Defeclor 70INVENTOR JOHN E.05TL| NE BY @Ww W MM T'ToRNEYs p 8, 9 J. E. OSTLINE2,385,228

TELEPHONE SYSTEM 28 Sheets-Sheet 13- Filed Aug. 26, 1940 2/300 3/ UL4W340 was 0155 INVENTOR JOHN E. OSTLINE TTORNEYS P 1945- J. E. OSTLINE2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1949 28 Sheets-Sheet 14 1604M? MMlTORNEYs Sept. 18, 1945. J. E OSTLINE 2,335,223

TELEPHONE SYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet 15 Toll Tl'ckefPepeazer' 80 0/50/ C750 Cl 262 W530 Marginal Ty/55v P'ey Char e 592 2/590 9 INVENTOR ATTORNEYS ept 18, 1945- J. E. OSTLINE 2,385,228

TELEPHONE SYSTEM INVENTOR JOHN E. OSTLINE M M' M M I A TORNEYS Sept. 18,1945. J. E. OSTLINE TELEPHONE SYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet17 e Trans. Silt fer 8O M/766 757 STorag 5/760 17 INVENTOR JOHN aesnmz@QEWU Toll Tz'ckel Pe I \wbm s M m 0 o \1 v35 9min h k b5 A'ITTORNEYSSept. 18, E945. J. E. OSTLINE 2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet l8 PegiferTrans/afar 60 INVENTOR JOH N E. OSTLINE BY W M M M ATTORNEYS Sept, M,1945. .JVE. OSTLINE 2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet l9 i Pegz'slfor 60[94 Marginal "/5943 INVENTOR JOHN E. USTLINE ATTORNEYS Sept, 18,, 1945.

.1. E. OSTLINE 2,385,228

TELEPHONE SYSTEM Filed Aug. 26, 1940 28 Sheets-Sheet 20 ReglsferTranslalor INVENTOR JOHN E. OSTLINE Mi wmva ATTORNEYS

